Syringe



(No Model.)

J. O. BAKER.

, SYRINGE.

No. 356,185. Patented Jan. 18, 1887.

U HQLEB'E Inventor- N. PuL'Rs. Phmniflnugmpher. Washmglavl. n. Cv

Unrra STATES.

ATEN'T rrrcn.

JOHN G. BAKER, OF MEGHANIOSBURG, OHIO.

SYFtlNGE.

SPECIFICATION -onning part of Letters Patent No. 356,185, dated January 18, 1887.

Serial No. 109,137. (No model.)

To all whom it may concern:

Be it known that 1, JOHN G. BAKER, a citizen of the United States, residing at Mechanicsburg, in the county of Champaign and State of Ohio, have invented certain new and use ful Improvements in Syringes, of which the following is a specification.

My invention relates to improvements in syringes, and the object of my invention is to provide a syringe particularly adapted for treating rectal ulcers and for such other purposes wherein it is desirable to create a continuous flow or washing within a confined passage or cavity.

My invention consists, first, in a nozzle or discharge-tube for a syringe provided with an inner passage having a dischargeopening leading laterally from said passage, and an outer cavity or chamber surrounding said opening; second, in a waste or discharge pas sage from said chamber; and, third, in combinations of parts hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of a syringe having a nozzle embodying my invention. Fig. 2 is a front elevation of my improved nozzle, and Fig. 3

is a sectional view of the same on line a 00.

Like parts are indicated by similar letters of reference throughout the several views.

In the said drawings, A represents the handbulb of an ordinary syringe, B the supplypipe, and O the discharge-pipe, of the same.

D is my improved nozzle, which I have shown attached to the discharge-pipe O. This nozzle is of a plain cylindrical exterior for the greater portion of its length, and is provided at the front with a longitudinal cavity or chamber, a, of considerable depth ,Which extends almost the entire length thereof.

At the rear of the nozzle is a passage, I), which extends longitudinally through the nozzle parallel with the opening of chamber a. This passage connects at the bottom with a neck, I), at an angle thereto, and adapted to be connected to the discharge-pipe of any ordinary syringe. Near the top of the passage I) is a discharge-opening, c, which extends laterally through the wall of the said passage and opens into the chamber a at the rear of said chamber. This opening is preferably made in the form of a longitudinal slot, as

shown in Fig. 3, though it is obvious that a ing may be used. At the bottom of .the nozzle the chamber a is preferably expanded and provided with a discharge spout or trough, e, which projects outwardly therefrom in an opposite direction from the neck I).

The operation of the device is very simple. The nozzle is inserted into the passage or cavity which it is desired to treat or cleanse until the discharge-opening comes opposite the part affected. lVat-er or other liquid is forced by the syringe through the passage Z) and is discharged through the slotted opening 0 against the side of the passage or cavity, the waste liquid running back into the chamber a and down through the same, and out at the trough or spout 6 without coming in contactwith the healthy or unaffected parts.

The device is particularly adapted for treating or washing rectal ulcers which occur in the side of the rectum a few inches above the anus. In treating or washing ulcers of this kind the nozzle is inserted into the rectum until the slot is opposite the ulcer. The nozzle, being of a plain cylindrical shape, may be inserted past the ulcer without irritating the same. 7 at the rear of the outer chamber, a, the walls of the rectum are held away from the said opening by the outer surface of the nozzle, so that the liquid from the syringe is discharged through the outer chamber, a, and directly into the ulcer. By having the outer chamber extended down to the bottom of the nozzle the liquid after passing into the ulcer will flow into the outer chamber and out at the bottom, so that a continuous washing may be had without removing the nozzle.

It is obvious that, if desired, the outer chamber, a, may be closed from a point slightly above the expanded portion thereof to apoint slight-1y below the lower extremity of the discharge-opening, as indicated at z and y in Fig. 2. In treating some kinds of ulcers this construction may be found preferable, the waste Water being carried off through the chamber a without coming in contact with the unaffected parts.

Having thus described my invention, I claim- 1. The combination, in a nozzle for a syr series of perforations or other form of open- The slotted discharge-opening being inge, of two passages, closed at the top, extending longitudinally therein, one on either side of the central axis of said nozzle, and a lateral discharge-opening connecting said passages, one of said passages being adapted. to be connected with the syringe and the other being open at one side and adapted to hold back the parts operated on and carry off the discharge from. said nozzle, substantially as set forth. v

2. The combination, in a nozzle for a syringe, of an inner passage, closed at the top, extending longitudinally on one side of the center of said nozzle, an outer passage or chamber, open at one side. extending longitudinally on the opposite side of said nozzle, a discharge-opening leading laterally from the inner passage into said outer passage, and a waste-conduit leading from said outer chamber, substantially as and for the purpose set forth.

3. The combination, with the plain outer cylindrical case, of the inner longitudinal passage, the neck connected to the bottom thereof at an angle thereto, the outer longitudinal chamber in the side of said casing, provided at the bottom with a spout or trough, and a slotted opening from said inner passage to said outer chamber, substantially as and for the purpose set forth.

41-. In a nozzle for a syringe, the combination of two passages extending longitudinally therein and a lateral opening adapted to connect said passages, one of said passages being closed at the top and adapted to be connected at the bottom to the syringe, the other passage being open at the side to form an outer or waste chamber, said Waste-chamber being expanded at the bottom and provided with a discharge-trough at an angle thereto, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set. my hand this 2d day of June, AQD. 1885. 1

JOHN 0., BAKER.

\Vitnesses:

O us 0. HoRNnY, ,G. A. BAKER. 

